Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Narrative) (Details)

v3.23.3
Summary of Significant Accounting Policies (Narrative) (Details)
 3 Months Ended 9 Months Ended
Mar. 28, 2022
USD ($)
item
$ / shares
Sep. 15, 2021
USD ($)
Sep. 30, 2023
USD ($)
shares
Sep. 30, 2023
USD ($)
segment
$ / shares
shares
Sep. 30, 2022
shares
Summary of Significant Accounting Policies [Line Items]          
Number of board of director members | item 7        
Value of the investment in short-term money market funds sought to be preserved (in dollars per share) | $ / shares       $ 1.00  
Maximum matching percentage by employer       6.00%  
Number of operating segments | segment       2  
Number of reportable segments | segment       1  
Dilutive effect     $ 0 $ 0  
Minimum [Member]          
Summary of Significant Accounting Policies [Line Items]          
Commercial contract completion period       3 months  
Large project construction completion period       18 months  
Maximum [Member]          
Summary of Significant Accounting Policies [Line Items]          
Commercial contract completion period       12 months  
Large project construction completion period       24 months  
Solar Panels [Member]          
Summary of Significant Accounting Policies [Line Items]          
Warranty period       25 years  
Inverters [Member]          
Summary of Significant Accounting Policies [Line Items]          
Warranty period       10 years  
SUNation 401(k) Plan [Member]          
Summary of Significant Accounting Policies [Line Items]          
Maximum matching percentage by employer       3.00%  
Selected by CSI [Member]          
Summary of Significant Accounting Policies [Line Items]          
Number of board of director members | item 2        
Selected by Pineapple Energy [Member]          
Summary of Significant Accounting Policies [Line Items]          
Number of board of director members | item 5        
Term Loan from Hercules Capital, Inc. [Member]          
Summary of Significant Accounting Policies [Line Items]          
Repayments of debt $ 4,500,000        
Repayment of debt including interest 5,600,000        
Debt instrument, face amount 7,500,000        
Warrants [Member]          
Summary of Significant Accounting Policies [Line Items]          
Shares not included in the computation of diluted earnings per share | shares     5,176,471 5,176,471 2,353,936
CSI [Member]          
Summary of Significant Accounting Policies [Line Items]          
Restricted cash and cash equivalents     $ 2,200,000 $ 2,200,000  
SUNation [Member] | Installation And Other Supplies [Member]          
Summary of Significant Accounting Policies [Line Items]          
Warranty period       10 years  
SUNation [Member] | Workmanship [Member]          
Summary of Significant Accounting Policies [Line Items]          
Warranty period       25 years  
Employee Stock Option [Member]          
Summary of Significant Accounting Policies [Line Items]          
Shares not included in the computation of diluted earnings per share | shares       0 0
Number of options outstanding | shares     0 0 0
Deferred Stock Award [Member]          
Summary of Significant Accounting Policies [Line Items]          
Shares not included in the computation of diluted earnings per share | shares       0 0
Number of options outstanding | shares     0 0 0
PIPE Investment [Member]          
Summary of Significant Accounting Policies [Line Items]          
Private placement investment 32,000,000.0 $ 32,000,000.0      
Additional common shares available to purchase during warrant period $ 32,000,000.0        
Warrant term   5 years 5 years 5 years  
PIPE Investment [Member] | Series A Preferred Stock [Member]          
Summary of Significant Accounting Policies [Line Items]          
Per share conversion price of preferred stock | $ / shares $ 13.60